Hematuria is the presence of red blood cells in the urine. It may be benign. If white blood cells are found in addition to red blood cells, then it is a signal of urinary tract infection. Types: Hematuria is of two types 1. Microscopic hematuria - Small amounts of blood can be seen on light microscopy or urinanalysis. 2. Macroscopic hematuria –Gross hematuria Diagnosis: Sometimes the cause of hematuria can be elucidated solely on the basis of the medical history and urine testing, or urinalysis.
Causes Urinary tract infection with bacteria. The vast majority of UTIs are caused by Escherichia coli, with a smaller percentage due toKlebsiella,pneumonia and Staphylococcus saprophyticus , Nephrolithiasis,stones in the kidney, bladder or ureter ,Trauma. Cancer of the kidney, prostate or bladder Other causes includes: Glomerular bleeding: eg: IgA nephropathy ("Berger's disease"), Alport syndrome, thin basement membrane disease ,Sickle cell disease.
Statistics In this retrospective observational longitudinal study, we analyzed data from 300 patients with advanced CKD (stages 4 and 5) followed between 2006 and 2010 in the Renal Unit at Gregorio Marañón Hospital, Madrid, Spain . Patients provided written informed consent. Gregorio Marañón Hospital Ethics Committee approved the study. The investigation conforms to the principles outlined in the Declaration of Helsinki.